| 摘要 |
PROBLEM TO BE SOLVED: To provide a europium-activated oxynitride phosphor using an inexpensive oxide, etc., as a raw material that contains an alkaline earth metal such as strontium, and discharging red light whose peak wavelength is 630 nm or more, and a production method thereof.SOLUTION: An oxynitride phosphor has a composition shown by the general formula (1): (M-Eu)AlSiONC, wherein M represents an alkaline earth metal element, and the following relationships are satisfied that 0<x<0.2, 1.3≤a≤1.8, 3.5≤b≤4, 0.1≤c≤0.3, 6.5≤d≤7 and 0.01≤e≤0.1, and is activated with a bivalent europium. |
